5G green cellular networks considering power allocation schemes

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• 作者：Xiaohu Ge ; Jiaqi Chen ; Cheng-Xiang Wang…
• 关键词：energy efficiency ; cellular networks ; MIMO ; achievable rate model ; power allocation scheme ; 022308 ; 能量效率 ; 蜂窝网络 ; MIMO ; 可达速率模型 ; 功率分配方案
• 刊名：SCIENCE CHINA Information Sciences
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：59
• 期：2
• 页码：1-14
• 全文大小：961 KB
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• 作者单位：Xiaohu Ge (1)
  Jiaqi Chen (1)
  Cheng-Xiang Wang (2)
  John Thompson (3)
  Jing Zhang (1)
  
  1. School of Electronics Information and Communications, Huazhong University of Science and Technology, Wuhan, 430074, China
  2. Joint Research Institute for Signal and Image Processing, School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
  3. Institute for Digital Communications, University of Edinburgh, Edinburgh, EH9 3JL, UK
  
• 刊物类别：Computer Science
• 刊物主题：Chinese Library of Science
  Information Systems and Communication Service
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1919

文摘

It is important to assess the effect of transmit power allocation schemes on the energy consumption on random cellular networks. The energy efficiency of 5G green cellular networks with average and water-filling power allocation schemes is studied in this paper. Based on the proposed interference and achievable rate model, an energy efficiency model is proposed for MIMO random cellular networks. Furthermore, the energy efficiency with average and water-filling power allocation schemes are presented, respectively. Numerical results indicate that the maximum limits of energy efficiency are always there for MIMO random cellular networks with different intensity ratios of mobile stations (MSs) to base stations (BSs) and channel conditions. Compared with the average power allocation scheme, the water-filling scheme is shown to improve the energy efficiency of MIMO random cellular networks when channel state information (CSI) is attainable for both transmitters and receivers. Keywords energy efficiency cellular networks MIMO achievable rate model power allocation scheme